Plus API Deprecation Notes

Plus.PeopleApi
has been deprecated in Google Play services 9.4. In the past, the
https://www.googleapis.com/auth/plus.login scope allowed access to a list of
people in the user's circles in addition to their name and profile information.
Starting in September 2016, the plus.login scope will allow access to only the
name and profile info for new users; calls to Plus.PeopleApi.load,
Plus.PeopleApi.loadVisible, and Plus.PeopleApi.loadConnected return empty
results for those new sign-ins. In 2017 Q1, you will get empty results back for
all users.

Instead of requesting the plus.login scope, we strongly recommend you instead
request the profile scope, which can give your app a streamlined, one-tap
sign-in experience.

In place of the social connection data from Plus.PeopleApi, you can get rich
cloud- and device-based contacts data from the
Contacts Provider,
or use the new Google People API.
To enhance the distribution of your app through the social graphs of your app's
user base, use Firebase Invites.

We are also deprecating Google+ Sign-In and the Plus and Plus.AccountApi
APIs. As a replacement, use
Auth.GOOGLE_SIGN_IN_API.
By using the latest API, you can improve the security, user experience, and
performance of your app, particularly if your app currently does either of the
following:

Retrieves the user's email address using Plus.AccountApi.getAccountName()
(which requires the user to grant the Contacts runtime permission on Android
Marshmallow and newer)

With the deprecation of the Google+ People API, we also changed our
branding guidelines. All sign-in
buttons should be branded as "Sign in with Google" with either blue or white
backgrounds, as long as the Google G logo has a white background.